:root{--app-bg:#07111f;--app-card:#0d1b2b;--app-line:rgba(255,255,255,.09);--app-cyan:#17d8c2;--app-text:#eaf2fb;--app-muted:#91a3b7;--app-danger:#ff6b79;--app-success:#3fe0a7}
*{box-sizing:border-box}body.app-page{margin:0;min-height:100vh;font-family:"Cairo",system-ui,sans-serif;background:radial-gradient(circle at 80% 0%,rgba(23,216,194,.12),transparent 30%),#07111f;color:var(--app-text);padding:0}.app-shell{width:min(1180px,calc(100% - 28px));margin:auto}.app-nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid var(--app-line)}.app-brand{display:flex;align-items:center;gap:11px;font-weight:900}.app-brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,var(--app-cyan),#4c7dff);color:#07111f;font-weight:900}.app-nav-actions{display:flex;gap:10px;align-items:center}.app-link{color:#b9c7d7;font-size:13px}.app-btn{border:0;border-radius:14px;min-height:46px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:900;cursor:pointer}.app-btn.primary{background:linear-gradient(135deg,#17d8c2,#08a9d7);color:#04131b}.app-btn.secondary{background:rgba(255,255,255,.06);border:1px solid var(--app-line);color:white}.app-btn.danger{background:rgba(255,107,121,.12);border:1px solid rgba(255,107,121,.28);color:#ff9ba5}.app-btn:disabled{opacity:.5;cursor:not-allowed}.app-main{padding:54px 0 90px}.auth-grid{min-height:calc(100vh - 76px);display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.auth-intro h1{font-size:clamp(38px,6vw,72px);line-height:1.16;margin:10px 0 18px}.auth-intro h1 span{color:var(--app-cyan)}.auth-intro p{max-width:650px;color:var(--app-muted);font-size:16px}.auth-points{display:grid;gap:11px;margin-top:28px}.auth-points span{color:#c9d4e0}.auth-card,.panel{background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.035));border:1px solid var(--app-line);border-radius:26px;box-shadow:0 30px 80px rgba(0,0,0,.28);padding:28px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:rgba(255,255,255,.04);border-radius:14px;padding:5px;margin-bottom:22px}.auth-tab{border:0;background:transparent;color:#899caf;padding:10px;border-radius:10px;font-weight:900}.auth-tab.active{background:#fff;color:#07111f}.form-grid{display:grid;gap:15px}.form-row{display:grid;gap:7px}.form-row label{font-size:12px;color:#b9c7d6;font-weight:800}.form-row input,.form-row textarea,.form-row select{width:100%;min-height:48px;background:#071521;border:1px solid var(--app-line);color:white;border-radius:13px;padding:10px 13px;outline:none}.form-row textarea{min-height:100px;resize:vertical}.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:rgba(23,216,194,.7);box-shadow:0 0 0 3px rgba(23,216,194,.08)}.form-msg{min-height:24px;font-size:12px}.form-msg.error{color:#ff8d98}.form-msg.success{color:#66e5b8}.hidden{display:none!important}.page-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.page-head h1{font-size:36px;margin:0}.page-head p{margin:4px 0 0;color:var(--app-muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.stat{padding:20px;border-radius:20px;background:rgba(255,255,255,.045);border:1px solid var(--app-line)}.stat strong{display:block;font-size:29px;color:var(--app-cyan)}.stat span{font-size:11px;color:#9eb0c2}.course-card{display:grid;grid-template-columns:140px 1fr auto;gap:22px;align-items:center}.course-thumb{height:105px;border-radius:18px;display:grid;place-items:center;background:radial-gradient(circle at 30% 20%,rgba(23,216,194,.22),transparent 30%),linear-gradient(135deg,#0e2b40,#111b31);font-size:44px}.course-card h3{margin:0 0 5px;font-size:22px}.course-card p{margin:0;color:var(--app-muted);font-size:12px}.status-pill{display:inline-flex;padding:5px 10px;border-radius:999px;font-size:10px;font-weight:900;margin-top:12px}.status-pill.active{background:rgba(63,224,167,.12);color:#62e6b8}.status-pill.pending{background:rgba(255,190,92,.13);color:#ffc86f}.status-pill.cancelled,.status-pill.expired{background:rgba(255,107,121,.12);color:#ff939e}.buy-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.price-box{text-align:center}.price-box .price{font-size:62px;font-weight:900;line-height:1;color:var(--app-cyan)}.price-box del{color:#788a9c}.steps{display:grid;gap:13px}.step{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:start}.step b{width:38px;height:38px;border-radius:12px;background:rgba(23,216,194,.12);color:var(--app-cyan);display:grid;place-items:center}.step strong{display:block;margin-bottom:3px}.step span{font-size:12px;color:var(--app-muted)}.course-layout{display:grid;grid-template-columns:1fr 350px;gap:22px}.video-panel{padding:0;overflow:hidden}.video-stage{aspect-ratio:16/9;background:#02080e;display:grid;place-items:center}.video-stage video,.video-stage iframe{width:100%;height:100%;border:0}.video-empty{text-align:center;color:#7f94a8}.video-meta{padding:20px}.video-meta h2{margin:0 0 6px}.video-meta p{margin:0;color:var(--app-muted);font-size:12px}.curriculum{max-height:75vh;overflow:auto}.section-block{border-bottom:1px solid var(--app-line);padding:14px 0}.section-block:last-child{border-bottom:0}.section-block h4{margin:0 0 10px;font-size:13px;color:#b6c7d6}.lesson-btn{width:100%;border:0;background:transparent;color:#cbd7e2;text-align:right;padding:11px;border-radius:11px;display:grid;grid-template-columns:30px 1fr;gap:10px;align-items:center}.lesson-btn:hover,.lesson-btn.active{background:rgba(23,216,194,.09);color:white}.lesson-btn span:first-child{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:rgba(255,255,255,.07);font-size:10px}.admin-grid{display:grid;grid-template-columns:330px 1fr;gap:22px}.stack{display:grid;gap:18px}.panel h2,.panel h3{margin-top:0}.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;min-width:820px}.data-table th,.data-table td{text-align:right;padding:12px;border-bottom:1px solid var(--app-line);font-size:11px}.data-table th{color:#8ea2b6}.inline-actions{display:flex;gap:7px;flex-wrap:wrap}.inline-input{min-width:110px;background:#071521;border:1px solid var(--app-line);color:white;border-radius:9px;padding:7px}.video-list{display:grid;gap:8px}.video-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:11px;border-radius:12px;background:rgba(255,255,255,.04)}.video-row small{color:#8fa3b5}.notice{padding:14px 16px;border-radius:14px;background:rgba(23,216,194,.08);border:1px solid rgba(23,216,194,.15);color:#bfeee8;font-size:12px}.empty{color:#8fa2b5;text-align:center;padding:30px}.danger-text{color:#ff8c98}
@media(max-width:900px){.auth-grid,.buy-layout,.course-layout,.admin-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.course-card{grid-template-columns:100px 1fr}.course-card>.app-btn{grid-column:1/-1}.course-layout .curriculum{max-height:none}.admin-grid{display:block}.admin-grid>.stack{margin-bottom:20px}}
@media(max-width:600px){.app-shell{width:min(100% - 18px,1180px)}.app-nav{min-height:66px}.app-main{padding:32px 0 80px}.app-nav-actions .app-link{display:none}.auth-grid{display:block}.auth-intro{padding:24px 0 32px}.auth-intro h1{font-size:40px}.auth-card,.panel{padding:18px;border-radius:20px}.page-head{display:block}.page-head h1{font-size:29px}.stats-grid{grid-template-columns:1fr 1fr}.course-card{grid-template-columns:1fr}.course-thumb{height:130px}.mini-grid{grid-template-columns:1fr}.price-box .price{font-size:48px}}